Effect of freeze-thaw cycles on mechanical and porosity properties of recycled construction waste mixtures

•The strain presents a parabolic or linear increase with the times of freeze-thaw cycles.•Proportion of 2:5:3 of recycled construction waste mixtures has better mechanical properties.•Maximum porosity occurs after 10 freeze-thaw cycles.•Fractal dimension of construction waste increases gradually with the increased freeze-thaw cycles.•Order between particles of construction waste decreases with the increased freeze-thaw cycles.